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Concentration of Credit Risk (Details Textual) (USD $)			9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Customer A [Member] Accounts Receivable [Member]	Sep. 30, 2011 Customer A [Member] Accounts Receivable [Member]	Sep. 30, 2012 Customer B [Member] Accounts Receivable [Member]	Sep. 30, 2011 Customer B [Member] Accounts Receivable [Member]	Sep. 30, 2012 One Customer [Member]	Sep. 30, 2011 One Customer [Member]	Sep. 30, 2012 Two Customers [Member]	Sep. 30, 2011 Two Customers [Member]
Purchases Major Customer Percentage							10.00%	10.00%	10.00%	10.00%
Accounts receivable, (less allowance for doubtful accounts of $80,000 and $70,000, respectively)	$ 7,330,051	$ 7,091,194	$ 1,467,000	$ 1,552,000	$ 204,000	$ 1,082,000
Concentration Risk Percentage 1			20.00%	21.40%	2.80%	14.90%

X

- Definition

Percentage of purchases generated from a external customer that accounts for 10 percent or more of an entity's sales.

+ References

No definition available.

+ Details

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Namespace Prefix:	ctib_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3-4)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Subparagraph a(1)

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	instant

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

+ Details

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